Solve for x in 125x+1 + 53x = 630

      

Solve for x in 125x+1 + 53x = 630

  

Answers


John
125x-1 + 53x = 630

53(x-1) + 5 = 630;

53x-3 + 5 = 630

$\frac{5^{3x}}{5^3}$ + $5^{3x}$ = 630,

Let 53x = a

$\frac{a}{125}$ + a = 630

a + 125a = 78 750

126a = 78 750

a = 625

53x = 54

x = $\frac{4}{3}$
johnmulu answered the question on June 13, 2017 at 05:20


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